20003080 has 32 divisors (see below), whose sum is σ = 46108440. Its totient is φ = 7805440.

The previous prime is 20003063. The next prime is 20003089. The reversal of 20003080 is 8030002.

It can be written as a sum of positive squares in 4 ways, for example, as 12916836 + 7086244 = 3594^2 + 2662^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20003080.

It is not an unprimeable number, because it can be changed into a prime (20003089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4459 + ... + 7738.

Almost surely, 2^20003080 is an apocalyptic number.

20003080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003080 is an abundant number, since it is smaller than the sum of its proper divisors (26105360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003080 is a wasteful number, since it uses less digits than its factorization.

20003080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12249 (or 12245 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20003080 is about 4472.4802962115. The cubic root of 20003080 is about 271.4556949547.

Adding to 20003080 its reverse (8030002), we get a palindrome (28033082).

The spelling of 20003080 in words is "twenty million, three thousand, eighty".